Princess Eugenie and Jack Brooksbank have invited representatives of the Royal National Orthopedic Hospital to the royal wedding in a heartwarming salute to the childhood illness of the bride.
Eugenie was diagnosed with scoliosis when she was 12 years old and was treated at the Royal National Orthopedic Hospital.
Representatives from the hospital, the largest orthopedic hospital in the UK that provides a range of neuro-musculoskeletal health services, ranging from spine injuries to specialized rehabilitation, will enjoy the wedding day on the grounds of Windsor Castle.
Buckingham Palace said in a statement: "Princess Eugenia and Jack Brooksbank invited members of the public to the grounds of Windsor Castle to join the celebrations on their wedding day.
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"Princess Eugenia was diagnosed with scoliosis when she was 12 years old and was treated at the Royal National Orthopedic Hospital.
"Inspired by her treatment, Her Royal Highness is the Patron of the appeal for the redevelopment of the hospital, and she is giving her name to her new cutting-edge treatment center, the House of Princess Eugenia.
"Princess Eugenie is also the Patroness of the European School of Osteopathy, a world-renowned provider of osteopathic education at the undergraduate and graduate levels."
The daughter of Prince Andrew and Sarah Ferguson fought the serious condition of her back as a child.
The 28-year-old underwent an eight-hour spinal operation to have titanium bars placed on either side of her spine.
Eugenie said: "In 2002, when I was 12 years old, I was diagnosed with scoliosis and was told that I would need corrective surgery.
"This was, of course, a frightening prospect for a 12-year-old boy. I can still vividly remember how nervous I felt in the days and weeks before the operation.
"After three days in intensive care, I spent a week in a room and six days in a wheelchair, but after that I walked again.
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"Without the care I received at RNOH, I would not see myself as I do now; My back would be stooped. And I could not talk about scoliosis like I do now, and help other children come to me with the same problem. "
Princess Eugenia has just opened up on the condition and, earlier this year, posted an image of an x-ray of the spine on Instagram to raise awareness about the condition.
Representatives of Teenage Cancer Trust, Street Child, The Salvation Army, the UN Trust Fund to End Violence against Women, Key to Freedom, Support for Wounded Veterans, The Big Cat Sanctuary, Elephant Family, Project 0, Charity: water, The Print Room at El Coronet and Tate Young Patronos have also been invited.
The Buckingham Palace statement comes when the Windsor dean, David Conner, praised "the perfect couple," Eugenie and Jack, 31.
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The dean, who will officiate when the couple makes their wedding vows and gives the address, has been giving the couple the traditional pre-marital psychological counseling.
Speaking on the eve of the wedding, he said: "As a couple, they look like the perfect couple.
"They are very natural with each other, they obviously love each other, but they also have a lot of fun together and it has been a real pleasure to work with them."
The dean said that the wedding service will be a mixture of "traditional and modern".
The details of the service have not been published, but when speaking about his state of mind, he said: "It will be a mixture of the traditional and the modern, and obviously it will be a great occasion, but I hope it also has an air of privacy about it.
"You just have to remember that it's your day and really do your best to focus on them and not on the hundreds of famous and semi-famous people that will be around."
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Speaking about the contribution of the couple in the service, he added: "Of course, the basic framework of the service is established, but there are many variables and have had a very significant influence on the final choice."
He said he would see Eugenie and Jack later on Thursday and that it was important for any couple to have an essay so that on their big day they would be in "family territory".
With Eugenie ready to walk down the aisle of St. George's Chapel tomorrow, a series of bets have been made about who will design her wedding dress.
Erdem remains the bookmaker's favorite in 2/1, but Ladbrokes said there have been a lot of bets for the British design brand Suzannah, with a 9/2 odds reduction to 3/1.
Meanwhile, Paddy Power has suspended bets on Eugenie with Stella McCartney after a lot of bets.